کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3213173 1203222 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
POMC and TP53 genetic variability and risk of basal cell carcinoma of skin: Interaction between host and genetic factors
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی امراض پوستی
پیش نمایش صفحه اول مقاله
POMC and TP53 genetic variability and risk of basal cell carcinoma of skin: Interaction between host and genetic factors
چکیده انگلیسی

BackgroundBasal cell carcinoma (BCC) of the skin is the most common neoplasm among the Caucasian population of the western world. Ultraviolet (UV) radiation-induced p53 activation promotes cutaneous pigmentation by increasing transcriptional activity of pro-opiomelanocortin (POMC) in the skin. Induction of POMC/α-melanocyte-stimulating hormone (α-MSH) activates the melanocortin 1 receptor (MC1R), resulting in skin pigmentation. The tumor suppressor p53 is a key player in stress responses that preserve genomic stability, responding to a variety of insults including DNA damage, hypoxia, metabolic stress and oncogene activation. Malfunction of the p53 pathway is an almost universal hallmark of human tumors. Polymorphisms in the gene encoding p53 (TP53) alter its transcriptional activity, which in turn may influence the UV radiation-induced tanning response.ObjectiveThe aim of the present work is to test association between POMC and TP53 genetic variability, the possible interplay with host factors and the risk of basal cell carcinoma of skin.MethodsWe covered the variability of the two genes we used 17 tagging polymorphisms in 529 BCC cases and 532 healthy controls. We have also tested the possible interactions between the genetic variants and three known risk factors for BCC: skin complexion, sun effect and skin response to sun exposure.ResultsWe did not observe any statistically significant association between SNPs in these two genes and BCC risk overall, nor interactions of SNPs with known BCC risk factors. However we found that, in the group of subjects with lower sun exposure, carriers of one copy of the C allele of the TP53 SNP rs12951053 had a decreased risk of BCC (OR = 0.28, 95% CI 0.12–0.62, P = 0.002).ConclusionsWe have observed that the interplay of an environmental risk factor and one polymorphism in TP53 gene could modulate the risk of BCC.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Dermatological Science - Volume 63, Issue 1, July 2011, Pages 47–54
نویسندگان
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